Electronic pen



FIG. 1 is a perspective view of an electronic pen showing a new design;

FIG. 2 is a right side elevational view of the electronic pen;

FIG. 3 is a left side elevational view of the electronic pen;

FIG. 4 is a top plan view of the electronic pen;

FIG. 5 is a bottom plan view of the electronic pen;

FIG. 6 is a front plan view of the electronic pen; and,

FIG. 7 is a bottom plan view of the electronic pen. 

The ornamental design for an electronic pen, as shown and described. 